| APA | SPPZ. (2012, February 16). In Acronym Geek. Retrieved 02:46, February 16, 2012, from http://www.acronymgeek.com/SPPZ |
| MLA | "SPPZ." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SPPZ>. |
| MHRA | 'SPPZ', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SPPZ> [accessed 16 February 2012] |
| Chicago | "SPPZ", http://www.acronymgeek.com/SPPZ (accessed February 16, 2012). |
| CBE/CSE | SPPZ [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SPPZ. |
| Bluebook | SPPZ, http://www.acronymgeek.com/SPPZ (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPPZ, http://www.acronymgeek.com/SPPZ (optional description here) (as of Feb. 16, 2012, 02:46). |
| AMA | SPPZ. Acronym Geek. February 16, 2012, 02:46. Available at: http://www.acronymgeek.com/SPPZ. Accessed February 16, 2012, 02:46. |